Combination gas, wood, or coal stove.



R. W. WILLIS.

COMBINATION GAS, woon, OR COAL STOVE.

APPLICATION FILED DEC. 4,1911. 1,()5(),586 Patented Jan 14, 19-13;

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Patented Jan. 14, 1913.

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COMBINATION GAS, WOOD, 0B COAL STOVE.

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COMBINATION GAS, WOOD, 0R COAL STOVE.

APPLICATION FILED DEC. 4, 1911.

Patented Jan. 14, 1913.

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UNITED STATES PATENT OFFICEQ ROBERT WADE WILLIS, OF SAPULFA, OKLAHOMA.

COMBINATION GAS, WOOD, GR COAL STOVE.

To all whom it may concern Be it known that I, ROBERT WADE \VILLis,

a citizen of the United States, residing at Sapulpa, in the county ofGreek and State of Oklahoma, have invented certain new and usefulImprovements in Combination Gas, Wood, or Coal Stoves; and I do declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in combined gas, Wood or coalburning heating stoves. i

The object of the invention is to provide a stove of this characterhaving an in provcd construction and arrangement of a gas burner whichmay be readily shifted to operative and inoperative positions thuspermitting the stove to be quickly and easily converted fronl a gas to awood or a coal burning stove.

With this object in view the invention consists of certain novelfeatures of construction, and the combination and arrangement of partsas will be more fully described and claimed.

In the accompanying drawings; Figure 1 is a front View of my improvedstove; Fig. 2 is an end view of one end thereof showing in full anddotted lines the operative and inoperative positions of the burner; Fig.3 is a vertical section on the line 3-3 of Fig. 4; Fig. 4 is atransverse section on the line 4-4 of Fig. 1; Fig. is a horizontalsection on the line 55 of Fig. at; Fig. 6 is a imilar view on the lineL43 of Fig i more particularly the construe rangement of the burner andthe pipe of the stove; Fig. 7 is an en tail sectional view throu 'h thepipe for the burner tain of l 8 and showin his;

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Specification of Letters Patent.

Application filed December 4, 1911.

Patented Jan. 141, 5913.

Serial No. 863,822.

opening which closed by a hingmi door 3. In the rear side of the base 1is arranged a cold air inlet passage 4 which extends the entire lengthof the base as clearly shown in F'gs. 4 and 6 pt the drawings. In themain portion of the base is arranged a fire :3 in which is secured asuitable form of grate 6, the front, bottom, and ends of which areformed of grate bars, While the re H thereof is solid. In the base beiow,re fire box and grate and slidably engaged with the bottom of the baseis an ash pan 1 said pan being adapted to be d awn out thrmiigii thefront side of the stove below the door 3. In the bottom of the base isarranged a cen tral longitudinally disposed opening 9' through which aburner hereinafter scribed is adapted to be raised nd lower to operativeand inoperative positions. Tielow the opening in the bottom of the basearranged a burner support 10 in which the burner rests when in aninoperative position.

The top the be e l in the form of fiat horizonniiy disposed air chamber11 with which the cold air passage 4; at the rear side of we baseconnects. To the top of the air chamber 11 is connected an up wardlyextending air heating and radia drum 1:? the u ever end of which isconnected r c 1 St) a which is a able draft i1 uber vii phere. B th 1.411 and the drum cold enter-ii the 4.-

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condition through the discharge openings 18 in the chamber 13 formingthe top of the drum. The heat conducting tubes 17 also conduct the airheated in the corners of the chamber it to the dis barging chamber 13,thus increasing the heatingcapacity of the stove. In one end of the drum1.2 and dome 14 is formed a fuel supplying opening 19 through uhich woodor coal is supplied to the tire box when this kind of fuel is used. Theopening 19 closed by a door 20 which is preferably hinged to one side ofthe drum as shown,

In addition to the tire box and grate for burning at or wood the stoveis further provided with means whereby the same may be heated by The gasheating mechanism shown comprises a pair of burner tubes :31 which aredisposed longitudinally in horizontal parallel relation in the base ofthe stove and are connected together at their ends by short connectingpipes 22. To

the co ting pipe at one end of the tubes 21 s: t gas conducting pipe 23which passe-i through a slot 23 in the adjacentend ct inn-i and/isconnected to a suitable air 11 xii 2, device 24. The air mixing device24 is connected to the forward end of a gas pnducting pipe 35 whichextends back and is connected with a sleeve 26, forming one member of arotary valve arranged on the adjacent end of the gas supply pipe 27. Theinner member of the valve is in the form of a tube closed at its outerend and connected at its inner end by a coupling 29 to the end of thesupply pipe, said tube having formed in one side thereof a gas l bargingpassage 28 with which the end the conduclin pipe 25 is adapted tobrought int-n egs or when the burner is l to an operative position bythe sleeve 26 when 3 downwardly to an inthus automatically clost v andcutting off the supply of 'lhe sleeve 26 fits sufliciently tight aroundthe. tube 28 as to be frictionally held in ailju-ted position. thefriction between said tu e and sleeve being suilicient to hold the bur;connected with the sleeve in raised Qion.

The burner composed of the connected tubes 2i lifted to an operativeposition beneath the grate (3 by means of a lifting rod 30 which isconnected to the end of the tubes opposite to the supply end thereof andwhich extends upwardly through a suitable opening in a flange of the topof the base and which is provided on its upper end with a handle 31whereby the same may be ma nipulated to raise and lower the burner asshown in full and dotted lines in the drawings. It will be understoodthat when the burner is shifted to operative and inoperative positionsthat the ash pan is first removed so that the latter will not interferewith the shifting of the burner, and to insure the burner being reliablyheld in raised position said pan may be inserted thereunder as shown inFig. 3. In connection with the burner, I employ a suitablepilot light31" connected to the outer end of the gas conducting pipe 23 andextending to Wit-bin a suitable distance from the base and opposite to ahole 32 in the end of the base through which the flame from the pilotlight will shoot and i 'nite the burner. The pilot light is providedwith a valve 33 and in the outer end of the gas conducting pipe 23 is acutoff valve 34.

From the foregoing description taken in connection with the accompanyingdrawings, the construction and operation of the invention will bereadily understood without requiring a more extended explanation.Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention as claimed.

Having thus described my invention, What I claim is:

A heating stove-having a hollow base with an op ning in its bottomthrough which a burner may be raised and lowered, a grate arranged insaid base, a burner support arranged below said opening, a removableash'pan in said base over said opening, a vertically movable burneradapted it be housed in said support when in lowered inoperativeposition, a pipe rigidly conrectt-d lwith said burner and extendingthrough one ROBERT VVADIC lVlLL-l S.

"s iitnesses Ana JoNns, JAMES A. Born.

